Slidable window sash



Jul 22, 1924. 1,502,644

Y H. E. CAMPBELL SbIDABLE WINDOW SASH Filed Nov. 30. 1921 a 2 1 4 1 INVENTOR ff ,3 3 BY 5 [3 A TTO NEY Patented daily 2, 1924..

i: .r: E. CAMPBELL, OF NEW YORK, N. Y., ASSIGNOR TO CAMPBELL WIN- DOW CORPORATION, F BALTIMORE, MARYLAND, A. CORPORATION OF MARY- SLIDABLE WINDOW SASH.

Application filed November 30, 1921. Serial No. 518,758.

To all whom it may concern:

Be it known that I, HARRY E. CAMPBELL,

a citizen of the United States, residing at New York, in the countyof New York and 5 State of New York, have invented a certain new and useful Improvement in Slidable Wihdow Sashes, of which the following is a specification.

his invention relates to windows of the i type in which the jamb is provided with openings in its inner face and with a partition extending across such openings and the sash is provided with plates adapted to go through such openin s and contact with such partition. A win ow of this type is described in my United States Patent No.

1,241,090 dated Sept. 25, 1917.

The adjustment of transverse movement has always been a great problem, particularl with metal sashes, and by my present 'lnvention' I provide a simple method of making such adjustment within the jamb where the adjusting means will not be visible after the window is completely assembled. The manner in which my invention may be carried out will be readily apparent from the examples illustrated in this specification.

In the accompanying drawing- Fig. 1 shows in elevation a portion of a sash frame and extension plate, and of a partition or fixed plate against whichv the vertical edge of said extension plate bears. Fig. 2 shows a modification ofthe manner of producing projections on the bearing edge of the extension plate.

Similar numbers of reference indicate like arts.

' 1 is a portion of a sash frame which carno ries the usual glass pane 2. 3 is-the cxtension plate of metal secured on a side rail of said frame. {i is avertical fixed plate or partition Within the jam, upon which' said extension plate bears. In order to ensure contact of the extension plate against the fixed jamb plate, 1 form integrally with and on the edge of said extension plate, elastic protrusions which bear upon the jamb plate. In Fig. 1' said protrusions are the tongues 5 formed bycutting the metal at said edge and bending the same outwardly to bear upon the fixed plate. Said tongues are preferably bent in curved shape, so that their convexities make contact with the fixed plate.

Instead of forming tongues in the man ner described, I may cut slots 6 near the. edge of the extension plate and bend the metal between the slots and the edge so as to project outwardly, as shown at 7, the convexity produce as before bearing against the jamb plate. As many tongues 5 or projections 7 may be made as desired along the edge of the extension plate and should protrude sufiiciently to. be somewhat compressed against their own elasticity when the sash is in place in the frame. As the extent of protrusion is easily adjusted by simply bending tongue'or projection more or less outwardly, it follows that any slight variations in the width of the sash which would result'in its being too loose in its frame is thus compensated for.

I claim In a window of the type in which the jamb is provided with openings in its inner face. the combination of a jamb mem ber adapted to stand behind the plane of the innerjamb wall, a sash having plates substantially the height of the sash adapted to extend into each jamb, slots near the edges of the plates and contact portions of the plates partially separated from the plates by such slots bentout to contact with said jamb member. said contact portions being of such thickness as to permit or bending by a manual operation to give a transverse adjustment to the sash, and at p the same time to be stiff enough to form an elastic Contact between the sash and the jamb member.

in testlmony whereof I have aflixed'iny signature in presence of two witnesses.

HARRY E. CAMPBELL. Witnesses Gnnrnrmn T. Pon'rnn, MAY T. MoGAnnY. 

